What language is used in this code?

Question

Programming languages

Good afternoon!
Tell me, please, what is this language?

require 'socksify'
require 'socksify/http'

module Sr

  class TorError < RuntimeError; end

  class Tor
    # Loads the torproject test page and tests for the success message.
    # Just to be sure.
    def self.test_tor?
      uri = 'https://check.torproject.org/?lang=en-US'
      begin
        page = Net::HTTP.get(URI.parse(uri))
        return true if page.match(/browser is configured to use Tor/i)
      rescue
        ;
      end

      false
    end


    # Our use case has the Tor SOCKS5 proxy running locally.  On unix, we use
    # `lsof` to see the ports `tor` is listening on.
    def self.find_tor_ports
      p = `lsof -i tcp | grep "^tor" | grep "\(LISTEN\)"`
      p.each_line.map do |l|
        m = l.match(/localhost:([0-9]+) /)
        m[1].to_i
      end
    end


    # Configures future connections to use the Tor proxy, or raises TorError
    def self.auto_configure!
      return true if @configured

      TCPSocket::socks_server = 'localhost'

      ports = find_tor_ports

      ports.each do |p|
        TCPSocket::socks_port = p
        if test_tor?
          @configured = true
          return true
        end
      end

      TCPSocket::socks_server = nil
      TCPSocket::socks_port = nil
      fail TorError, "SOCKS5 connection failed; ports: #{ports}"
    end
  end
end

Answer 1

ruby